IMAGE OF DETAIL CONNECTIONS § 87. General information

Manufactured by industry machines, machines, devices and apparatus consist of various specifically connected and interconnected parts; which are interconnected in various ways. The connection of parts ensures their certain mutual position in the process of work.

There are detachable and one-piece connection parts. To demountable include connections that allow disassembly and reassembly of the parts to be connected without damage and damage. These include, for example, connections made with a bolt and nut.

By one-piece include the connection of parts with a rigid mechanical connection, which lasts for the entire period of their service. Disassembly of such compounds is impossible without damage or damage to the parts themselves or the elements connecting them. For permanent can be attributed, for example, connections of parts by welding, rivets, soldering.

In turn, the detachable connections are divided into moving, allowing the movement of one part relative to another, and stationary, in which parts can not move one relative to another. An example of a movable joint of parts can be the connection of a movable nut with a screw of a lathe support, and a fixed one - the connection of parts with a screw.

There are also groups of special connections, which include the connection of parts in the transmissions of machines, for example, the connection of gear wheels. This also includes the connection of parts using springs, when, after removing the load, the parts must be returned to their original position.

When performing on the drawings of the connections of the parts use their full, simplified or conventional images. Sometimes (for example, in the designation of welding, soldering, etc.) additional symbols are used.